Search results for "Period 3 element" - New World Encyclopedia

From New World Encyclopedia
  • as unnilunium (symbol Unu), is a synthetic element in the periodic table. A ... alpha particles. Only trace amounts of the element have been produced. The ...
    6 KB (778 words) - 04:30, 9 November 2022
  • ores. Although many isotopes of this element have been produced, they ... This element, which was named for France, was the last element discovered ...
    6 KB (795 words) - 04:56, 9 April 2024
  • are chemical elements that lie in groups 3 through 12 of the periodic ... The general definition of transition metals as those that lie in groups ...
    17 KB (2,462 words) - 04:39, 5 November 2022
  • * The large table provides the basics plus full element names and ... Each element appears in a box which contains the symbol of the element ...
    13 KB (1,942 words) - 00:40, 24 November 2022
  • is the rarest naturally occurring chemical element. It is a member of the halogen ... This element was discovered in 1940 by Dale R. Corson, K. R. MacKenzie ...
    6 KB (808 words) - 05:08, 18 August 2023
  • Einsteinium (chemical symbol Es, atomic number 99) is a synthetic ... and practical applications of the element have yet to be developed. ...
    7 KB (940 words) - 00:06, 13 February 2024
  • as unnilbium (symbol Unb), is a synthetic element in the periodic table. A ... that they had synthesized an isotope of element 102. The team reported that ...
    7 KB (962 words) - 02:34, 16 November 2022
  • Fermium (chemical symbol Fm, atomic number 100) is a synthetic element ... beta decays also occurred to create the element). The work was overseen ...
    7 KB (998 words) - 17:26, 26 March 2024
  • 97) is a synthetic, radioactive chemical element, classified as an actinide ... to be synthesized. Currently, the main interest in this element lies ...
    7 KB (911 words) - 11:01, 28 September 2023
  • 95) is a radioactive, synthetic metallic element, classified as an actinide ... This element, which can be produced in kilogram quantities, and has ...
    9 KB (1,328 words) - 06:50, 25 July 2023
  • eka-lutetium, is a radioactive synthetic element in the periodic table. Its ... sometimes used as a temporary, systematic element name until that time. ...
    6 KB (798 words) - 17:58, 25 October 2022
  • Europium is never found in nature as a free element; however, there ... samples of the recently discovered element samarium were contaminated ...
    10 KB (1,254 words) - 04:34, 23 March 2024
  • affinity and ionization energy of a given element, and they can be quantitated ... Consequently, the electronegativity of an element cannot be measured directly—it ...
    16 KB (2,171 words) - 15:58, 13 February 2024
  • Terbium is never found in nature as the free element, but it is contained ... Terbium is classified as a rare earth element. The term "rare ...
    9 KB (1,141 words) - 03:47, 30 April 2023
  • 96) is a radioactive, metallic, transuranic element "Transuranic ... amounts, making it feasible to study the element's chemical properties ...
    10 KB (1,354 words) - 06:46, 12 January 2024
  • number 71) is a silvery white, metallic element that usually occurs in association ... which contains 0.003 percent of the element. Pure lutetium metal has ...
    11 KB (1,371 words) - 03:06, 5 November 2022
  • Californium (chemical symbol Cf, atomic number 98) is a chemical element ... (helium ions). Californium is the heaviest element that has been produced in ...
    11 KB (1,466 words) - 18:27, 25 November 2023
  • charge. Berylium is the least metallic element in the group and tends form ... Aluminum is the third most abundant element in the earth's crust ...
    30 KB (4,368 words) - 00:41, 24 November 2022
  • 93) is a silvery radioactive metallic element, belonging to the actinide ... neutrons. It was the first transuranium element produced synthetically and ...
    11 KB (1,451 words) - 16:21, 11 November 2022
  • The element is never found in nature in pure form, but it is found ... turned out to be the oxide of the element holmium and was named holmia ...
    9 KB (1,135 words) - 23:14, 30 April 2023
  • the Congo have been found to contain the element at a concentration of about ... The existence of an element between thorium and uranium was predicted ...
    9 KB (1,150 words) - 08:16, 2 December 2022
  • Dysprosium (chemical symbol Dy, atomic number 66) is a rare earth ... Dysprosium is never encountered as a free element but is found in ...
    10 KB (1,193 words) - 17:27, 12 February 2024
  • number 70) is a soft silvery metallic rare earth element. ... gadolinite, monazite, and xenotime. The element is sometimes associated ...
    11 KB (1,375 words) - 21:33, 4 June 2023
  • number 68) is a silvery metallic rare earth element. The term "rare ... Like other rare earths, this element is never found as a free element ...
    11 KB (1,419 words) - 19:19, 13 February 2024
  • (chemical symbol Pr, atomic number 59) is a soft silvery metallic ... "didymium" (meaning "twin element") from lanthana. It ...
    12 KB (1,535 words) - 22:14, 30 November 2022
  • in air. It was the "secret" element used in the production of ... and uranium ores, but never as a free element. It is commercially recovered ...
    12 KB (1,634 words) - 21:34, 4 June 2023
  • from the mineral samarskite ((Y,Ce,U,Fe)3(Nb,Ta,Ti)5O16). ... in 1845–1861. The name of the element is derived from the name of ...
    11 KB (1,437 words) - 02:07, 23 December 2022
  • 89) is a silvery, radioactive, metallic element. Due to its intense radioactivity ... In the periodic table, actinium is situated in period seven and group ...
    7 KB (911 words) - 05:39, 15 June 2023
  • number 64) is a silvery white metallic element and a member of the lanthanide ... In nature, gadolinium is found not as the free element but in various ...
    13 KB (1,750 words) - 07:39, 15 April 2024
  • It is the only liquid nonmetallic element at room temperature and ... Given its reactivity, bromine is not found as a free element in nature ...
    10 KB (1,346 words) - 04:33, 22 November 2023
  • Promethium (chemical symbol Pm, atomic number 61) is a metallic element ... in 1914, who found a gap for a missing element which would have atomic ...
    11 KB (1,429 words) - 23:55, 1 December 2022
  • Scandinavia and elsewhere. It is a rare element that chemically resembles ... This element is mainly used in alloys with aluminum for minor components ...
    12 KB (1,615 words) - 17:06, 25 January 2023
  • as primary sources of extraction of the element or its compounds. Rather ... Before gallium was discovered, the element and many of its properties ...
    15 KB (2,122 words) - 04:06, 18 April 2024
  • This element has many isotopes, of which the single stable isotope ... lines were produced by a hitherto unknown element, which they named cesium ...
    14 KB (1,931 words) - 00:09, 4 December 2023
  • , though translated as “phase” or “element,” is a verb meaning “to ... Each of the five agents is associated with a specific element in each ...
    19 KB (2,730 words) - 14:06, 20 May 2023
  • number 52) is a relatively rare chemical element that belongs to the group ... This element is primarily used in alloys. For instance, when added ...
    14 KB (1,880 words) - 05:35, 27 February 2023
  • 57) is a soft, silvery white metallic element. Found in combination with ... range of applications. For instance, the element is used in motion-picture ...
    11 KB (1,398 words) - 22:23, 22 October 2022
  • is not an economically viable source of the element. Commercial rhenium ... meaning "Rhine." Before this element was discovered, its existence ...
    10 KB (1,384 words) - 20:01, 8 December 2022
  • This element expands on freezing and was long an important component ... and Kazakhstan are smaller producers of this element. == History == ...
    14 KB (1,891 words) - 17:59, 31 October 2023
  • for many years before isolation of the element fluorine. For example, the ... acid contained a previously unknown element. This element, however, ...
    13 KB (1,855 words) - 17:47, 28 March 2024
  • (chemical symbol Nd, atomic number 60) is a silvery metallic element ... In nature, neodymium is found not as the free element but in ores ...
    12 KB (1,578 words) - 16:18, 11 November 2022
  • atomic number 58) is a silvery metallic element that is a member of the ... known as orthite) [(Ca, Ce, La, Y)2(Al, Fe)3(SiO4)3(OH)], monazite [(Ce ...
    15 KB (2,039 words) - 23:59, 3 December 2023
  • 37) is a soft, silvery-white metallic element of the alkali metal group ... This element is considered to be the sixteenth most abundant element ...
    14 KB (1,892 words) - 20:57, 21 December 2022
  • This element is a highly effective hardener and wear-resistant agent ... This element is generally found in ores with the other platinum group ...
    13 KB (1,814 words) - 18:24, 22 December 2022
  • Vanadium is never found as a free element in nature, but it occurs ... him of chromium salts, so he named the element "panchromium." ...
    15 KB (2,022 words) - 14:18, 3 May 2023
  • Cl2. Given its high reactivity, the free element is not found in nature. ... experiments indicated that this gas was an element, not a compound. He named ...
    15 KB (2,040 words) - 17:07, 10 December 2023
  • various ores and is important as a trace element in the human body. It is ... AsS), in which the cobalt:iron(II) ratio is typically 3:1 ...
    13 KB (1,769 words) - 22:14, 7 January 2024
  • to gray when exposed to air. This element and its compounds are highly ... The element thallium is reasonably abundant in the Earth's crust ...
    13 KB (1,784 words) - 15:06, 30 April 2023
  • The element is never found as a free element but does occur in the ... of Connecticut. Hatchett named the element columbium (symbol Cb). ...
    14 KB (1,909 words) - 04:59, 15 November 2022
  • complex. Principal sources of this element are located in South Africa ... metal. In the periodic table, it lies in period five between ruthenium and ...
    13 KB (1,685 words) - 20:04, 8 December 2022

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